package arrays

import (
	"reflect"
	// "sort"
	"sync"
)

type Set struct {
	m map[interface{}]bool
	sync.RWMutex
}

func MakeSet(i ...interface{}) *Set {
	s := &Set{
		m: map[interface{}]bool{},
	}

	for _, d := range i {
		s.m[d] = true

	}

	return s
}

func (s *Set) Add(item interface{}) {
	s.Lock()
	defer s.Unlock()
	s.m[item] = true

}

// func (s *Set) Remove(item int) {
// s.Lock()
// defer s.Unlock()
// delete(s.m, item)
// }

func (s *Set) Has(item interface{}) bool {
	s.RLock()
	defer s.RUnlock()
	_, ok := s.m[item]
	return ok
}

func (s *Set) Len() int {
	return len(s.List())
}

func (s *Set) Clear() {
	s.Lock()
	defer s.Unlock()
	s.m = map[interface{}]bool{}
}

func (s *Set) IsEmpty() bool {
	if s.Len() == 0 {
		return true
	}
	return false
}

func (s *Set) List() []interface{} {
	s.RLock()
	defer s.RUnlock()
	list := make([]interface{}, 0)
	for item := range s.m {
		list = append(list, item)
	}
	return list
}

func (s *Set) Strings() []string {
	s.RLock()
	defer s.RUnlock()
	list := make([]string, 0)
	for item := range s.m {
		list = append(list, reflect.ValueOf(item).String())
	}
	return list
}

func (s *Set) Ints() []int64 {
	s.RLock()
	defer s.RUnlock()
	list := make([]int64, 0)
	for item := range s.m {
		list = append(list, reflect.ValueOf(item).Int())
	}
	return list
}

func (s *Set) Floats() []float64 {
	s.RLock()
	defer s.RUnlock()
	list := make([]float64, 0)
	for item := range s.m {
		list = append(list, reflect.ValueOf(item).Float())
	}
	return list
}

// func (s *Set) SortList() []interface{} {
// s.RLock()
// defer s.RUnlock()
// list := make([]interface{}, 0)
// for item := range s.m {
// list = append(list, item)
// }
// sort.Ints(list)
// return list
// }
